HazMat Awareness
Commonly Used Abbreviations
| ACGIH | American Conference of Governmental Industrial Hygienists |
| BLEVE | Boiling Liquid Expanding Vapor Explosion |
| CAS | Chemical Abstract Service |
| CERCLA | Comprehensive Environmental Response, Compensation, and Liability Act |
| CFR | Code of Federal Regulations |
| CGA | Compressed Gas Association |
| CHEMTREC | Chemical Transportation Emergency Center |
| COFC | Container-On-Flatcar |
| DOE | Department of Energy |
| DOT | Department of Transportation |
| EHS | Extremely Hazardous Substance |
| ERG | Emergency Response Guidebook |
| EPA | Environmental Protection Agency |
| GEBMO | General Emergency Behavior Model |
| HMR | Hazardous Materials Regulations |
| HMTA | Hazardous Materials Transportation Act |
| IC | Incident Command(er) |
| IDLH | Immediately Dangerous to Life and Health |
| LC50 | Lethal Concentration |
| LD50 | Lethal Dose |
| LEL | Lower Explosive Limit |
| LOX | Liquid Oxygen |
| LPG | Liquefied Petroleum Gas |
| MSDS | Material Safety Data Sheet |
| NACA | National Agricultural Chemical Association |
| NFPA | National Fire Protection Association |
| NIOSH | National Institute of Occupational Safety and Health |
| N.O.S. | Not Otherwise Specified |
| NRC | National Response Center |
| ORM-D | Other Regulated Material |
| OSHA | Occupational Safety and Health Administration |
| PCB | Polychlorinated Biphenyls |
| PEL | Permissible Exposure Limit |
| PIN | Product Identification Number |
| PPE | Personal Protective Equipment |
| RAM | Radioactive Material |
| STCC | Standard Transportation Commodity Code |
| TLV | Threshold Limit Value |
| TLV/C | Threshold Limit Value-Ceiling |
| TLV-STEL | Threshold Limit Value Short-Term Exposure Limit |
| TLV-TWA | Threshold Limit Value/Time-Weighted Average |
| TOFC | Trailer-On-Flatcar |
| UEL | Upper Explosive Limit |